目的 为实现企业双层编织袋的自动化扎口与打结作业,本文设计一种结构紧凑、运行高效的自动扎口打结装置。方法 首先通过对双层编织袋扎口绳结工艺进行分析,确定采用双套单结作为工作绳结,并模拟人工打制双套单结的过程,设计自动扎口打结机的机械机构,使其能完成夹带、束口、绕绳、勾绳、紧绳和断绳等动作,并对关键结构进行运动学分析,构建相对应的控制系统,实现设备的自动化运行。结果 通过样机制作与性能试验,试验结果表明该装置打结成功率可达99%,打结效率为172.29次/h,具备良好的稳定性与作业效率。结论 自动扎口打结机可有效替代人工在双层编织袋上打制可靠的双套单结,满足企业对双层编织袋扎口打结质量与效率的实际生产需求,能够显著降低人力成本、提升作业效率,具有广阔的市场应用前景。
Abstract
The work aims to design an automatic tying and knotting device with a compact structure and efficient operation to realize the automated tying and knotting operation of double-layer woven bags in enterprises. First of all, the double-layer woven bag tying and knotting process was analyzed to determine the use of a double clove single knot as the working knot, and simulate the process of manually tying double clove single knots, and design the automatic tying and knotting machine's mechanical mechanism, so that it could complete the action of clamping, bunching, winding, hooking, tightening and breaking the rope, etc. A kinematics analysis of the key structure was carried out to build the corresponding control system, to achieve automatic equipment operation. Through the prototype production and performance testing, the test results showed that the success rate of the device knotting could reach 99%, with a knotting efficiency of 172.29 knots/h, demonstrating good stability and operational efficiency. The automatic tying and knotting machine can effectively replace labor in the double-layer woven bag to tie a reliable double clove single knot, to meet the actual production needs of enterprises on the quality and efficiency of the double-layer woven bag knot tying and knotting, can significantly reduce the labor cost, improve the operational efficiency, and has a broad market application prospect.
关键词
扎口打结机 /
自动打结 /
双套单结 /
控制系统 /
ADAMS /
运动轨迹分析
Key words
tying and knotting machine /
automatic knotting /
double clove single knot /
control system /
ADAMS /
trajectory analysis
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基金
宁夏回族自治区科技攻关计划项目（2019BFH02005）
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